create-vhs

create-vhs is a skill for Claude Code, Codex from ric03uec/clawrium. It costs 83 tokens per session (3,593 once invoked), scanned A, original, Apache-2.0.

A workflow for recording command-line software demonstrations as MP4 videos or GIFs using VHS, a tool that turns scripted terminal sessions into recordings. It first captures command output, then uses a scene file to compile and record the demo.

In plain words
What is it for?
Use it to create dated CLI demo projects, generate VHS tape files and helper scripts, record terminal demonstrations, add voiceover to MP4s, and prepare videos for upload.
Why use it?
It makes repeated recordings faster and timing more consistent because captured output can be reused instead of rerunning every live command. MP4 recordings can also receive cached voiceovers.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ric03uec/clawrium/create-vhs
Any agent
npx skills add ric03uec/clawrium --skill create-vhs
Clone the repo
git clone --depth 1 https://github.com/ric03uec/clawrium

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for create-vhs

README.md
[![agentmods](https://agentmods.dev/badge/skills/ric03uec/clawrium/create-vhs.svg)](https://agentmods.dev/skills/ric03uec/clawrium/create-vhs)
Your own site
<a href="https://agentmods.dev/skills/ric03uec/clawrium/create-vhs"><img src="https://agentmods.dev/badge/skills/ric03uec/clawrium/create-vhs.svg" alt="Measured on agentmods" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,593 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00083 $0.03593
Opus 5 $0.00042 $0.01796
Sonnet 5 $0.00017 $0.00719
Haiku 4.5 $0.00008 $0.00359

Measured 5d ago against content hash dc8a2d25ae9f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-vhs scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/check-prereqs.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/create-vhs/SKILL.md · 265 lines

How it starts

The opening of the file, as written. The whole thing — 265 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Demo Recording with VHS — replay-first pipeline

Record CLI demos using charmbracelet/vhs. Each demo lives in its own dated-slug folder docs/demos/YYYYMMDD-<slug>/. The pipeline is replay-first: captured stdouts are saved once on a live host, then a YAML spec drives tape generation, recording, and narration. Iteration is fast and timing is deterministic.

Pipeline

              (one-time, slow)
   scenes.yaml + live host  -->  outputs/*.txt       [capture phase]
                                          |
              (instant)                   v
   scenes.yaml  +  outputs/*.txt  -->  compile.py  -->  tape.tape + helpers.sh + compiled.json
                                          |
              (~2 min)                    v
                                       vhs tape.tape  -->  recording.mp4
                                          |
              (~30s, cached per text)     v
                                       narrate.py compiled.json  -->  voice/*.mp3 + recording-narrated.mp4
                                          |
              (manual)                    v
                                       upload to YouTube

compile.py, vhs, and narrate.py are all idempotent and fast. The slow step is the initial capture; everything downstream re-runs in seconds.

Output Layout

Path Committed? Purpose
docs/demos/lib/cards.sh yes Shared titlecard/outrocard/headline/progress ANSI functions
docs/demos/lib/compile.py yes scenes.yaml → tape.tape + helpers.sh + compiled.json
docs/demos/lib/narrate.py yes compiled.json + .env → voice/*.mp3 + recording-narrated.mp4
docs/demos/lib/.env.example yes Template for ElevenLabs credentials
docs/demos/lib/.env no (gitignored) Real API key + voice/model IDs
docs/demos/YYYYMMDD-<slug>/scenes.yaml yes Single source of truth — scene structure, commands, narration
docs/demos/YYYYMMDD-<slug>/outputs/NN-<slug>.txt yes Per-scene captured stdouts (replayed by the tape)
docs/demos/YYYYMMDD-<slug>/tape.tape yes Generated by compile.py; do not hand-edit
docs/demos/YYYYMMDD-<slug>/helpers.sh yes Generated by compile.py; sources lib/cards.sh
docs/demos/YYYYMMDD-<slug>/compiled.json yes Generated by compile.py; absolute narration timestamps
docs/demos/YYYYMMDD-<slug>/voice/*.mp3 no (gitignored) Per-beat TTS clips, cached by sha1(voice_id + text)
docs/demos/YYYYMMDD-<slug>/recording.mp4 no (gitignored) Output of vhs tape.tape
docs/demos/YYYYMMDD-<slug>/recording-narrated.mp4 no (gitignored) Final video with voiceover muxed in

Read the full file on GitHub · 265 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 265 lines · 83 tokens per session scan A dc8a2d25ae9f

Subscribe to this mod's changes

create-vhs is a skill published in the GitHub repository ric03uec/clawrium (51 stars, last pushed yesterday), licensed Apache-2.0. It adds 83 tokens to every session and 3,593 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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